Nearly two-dozen states will have to cut harmful industrial emissions of nitrogen oxide and other pollutants, improving air quality for millions of people living in downwind communities.
Since 2011, a fleet of seaweed patches double the size of the contiguous U.S. has cycled from West Africa to Florida, threatening beaches from Martinique to Miami. This year, it could grow bigger.
The EPA proposed new regulations for PFAS and PFOA in the nation's drinking water. The chemicals are part of a class of so-called forever chemicals associated with a variety of health problems.
The EPA proposed limiting the amount of harmful "forever chemicals" in drinking water to the lowest detectable levels, a move it said will save thousands of lives and prevent serious illnesses.
NPR's Leila Fadel talks to Jade Begay of the group NDN Collective, which advocates for indigenous communities, about the White House approving the controversial Willow drilling project in Alaska.
The population of an endangered bird, the Everglade snail kite, has rebounded recently. Scientists it's all thanks to an invasive snail that has provided kites with a new abundant food source.
ConocoPhillip's $8 billion Willow project in the Alaska's National Petroleum Reserve will move ahead. Biden put millions of acres off-limits to future oil drilling; environment groups aren't thrilled.
One in five Sierra Nevada conifers are no longer compatible with the environmental conditions around them, raising questions about how to manage the land. Researchers say it may get worse.
Environmental advocates opposed to the oil drilling project have called it a "carbon bomb," but proponents such as Alaska politicians and labor unions say it will bring jobs and revenue to the state.